Bathtub



FIG. 1 is a perspective view taken from the front and top of a bathtubshowing my new design;

FIG. 2 is a left side elevational view thereof, the right side being amirror image of the left side shown;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 1.

The ornamental design for a bathtub, as shown and described.